Ghost 
To dream of ghosts typically represents the parts of you that cause you fear. This could deal with some difficult memory or repressed feelings. You could fear death or of dying. Ghosts in dreams can also signify something that you realize you cannot attain anymore, such as a dream that has died. It suggests that you feel cutoff from society in some way. This dream could be urging you to reevaluate the way you think and behave in order to move ahead in life.
To dream that you try to touch a ghost that vanishes suggests that you are working toward dealing with emotions or ideas that you've kept buried, even though you may not be ready to completely address them.
To dream about the ghost of a living relative indicates that someone may try to cause you harm.
To dream of the ghost of a dead friend or relative indicates that you have some shame about a relationship with that dead friend or relative.
Ghost Town
If you see a ghost town in your dream, it indicates the feeling of complete loneliness in an endeavor that should have gathered a huge support of network. Perhaps you're reinitiating a project or idea that has been abandoned by many thus isolating yourself from others.
Alternatively, the dream may be suggesting that it is time to let go of your past and get use to the present times.
Zombie
To dream of yourself as a zombie may indicate that you are emotionally or physically detached from the people and situations that surround you. You may be feeling out of touch.
Conversely, seeing yourself as a zombie in your dreams indicates a dead feeling inside and may mean that you are simply going through the motions of daily life.
Demons
To dream about demons indicates opposition, incomprehension, and anguish regarding your 'shadow' self. You should be aware of any gratification or sexual desires that could be against common sense. Due to this, your health could be in jeopardy.
To dream about being possessed by demons suggest a sense of being out of control.
Haunted House
Dreaming of a haunted house represents an unsettled past. You may have unresolved problems with past friends or family which are causing you feelings of guilt or anxiety.
Dreaming that you are lost or trapped inside a haunted house means that these feelings have limited your abilities in other aspects of your life.
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